co-star

Other spellings

• costar

Word parts

co- + star

Pronunciation

• IPA ^(key): /ˈkəʊstɑː(r)/

Noun

Singular co-star

Plural co-stars

1. (countable) A co-star is an actor who appears on-screen with other actors of equal importance.

Verb

Plain form co-star

Third-person singular co-stars

Past tense co-stared

Past participle co-stared

Present participle co-staring

1. If an actor co-stars, they appear in a production as a co-star.